Product works great, recommended ultrasonic cleaner water temperature may help. At what water/solution temperature would your product be ideal for cleaning.
Pros
SAFE ON ALL METAL & NON-TOXIC: This non-toxic ultrasonic carburetor cleaner is safe on all metals including aluminum, aluminum alloys, brass, cast iron, copper, copper alloys, ferrous metals, magnesium, yellow alloys, zinc and coins. . Contains no borates, phenols, nitrates, ingredients listed in SARA 313, EPA 33/50 or butyl cellusolve.